So I am kind of a newb, but the whole trojan thing that was going around within the past two weeks has got me spooked. When you install an app from a trusted source, you are going to be asked for your admin password. This is normal and I understand. However, there were some trojans that were going around recently and people were getting tricked into giving up their password and granting certain rights to the attacker. So my question is this: What is the difference between admin privilege and root access. Further, what should you be on the lookout for when an app asks for permission when installing? I always just entered my password and assumed it was normal. For example this install is asking for admin permissions, which is normal I believe, but when should I be suspicous?